Valve.



E. L. RUSSELL VALVE.

APPLICATION FILED MAY 9. 1912.

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VALVE.

APPLICATION FILED MAY 9| `I9I2.

1,284,463.y n I y Patented N0v,12,1918.

l SMOM/w13 UNITED STATES PATENT OFFICE.

EDWIN L. RUssELL, or DETROIT, MICHIGAN, AssIGNoR, EY IvIEsNE ASSIGNMENT-s, To; SILENT vALvE MOTORS CORPORATION, A CORPORATION OE'DELAWARE.

yvALvE.

Specification of Letters Patent.

Application filed May 9, 1912. Serial No. 696,077.

To all whom it may concern: l

Be it known that I, EDWIN L. RUSSELL,

a citizen of thepUnited States, residing at Detroit, in the county of Wayne and State :of Michigan, have invented a new and use- 3 an axial section of the valve at right.

angles to the section shown in Fig. 1; and Fig. 4 an elevation of the valve; and Fig. 5

a' section of the valve similar to Fig. 1 but with thedrive shaft omitted.

In'the drawings, 10 and 11 indicate two adjacent cylinders of an internal combustion engine and 12 indicates a valve chamber, the axis of which is conveniently parallel with the axes of the cylinders 10 and 11. The

valve chamber 12 is conveniently round and axially tapered and communicates with the cylinders 10 and 11 through ports 13 and 14, respectively, these ports, at the valve chamber end being of considerable length axially of the valve chamber, and, in practice, having an angular extent of about 20 and the two ports separated by a space of about 25 around the valve' chamber wall.

Rtatably mounted within the valve chamber 12 is a valve 15 which is, of course, fitted to the chamber and is preferably `driven from the shaft 16 through the mcdum of a peculiar driving connection 17, or its equivalent, by means of which the p .Valve is automatically uniformly maintained in its seat independent of variations in size of the valve and valve seat due to tempera'- ture or other changes. The peculiar driving connection 17 forms the subject matter of my pending application, Serial Number 603,705.

Extended diametrically through the valve 15 is an exhaustpassage 18, the ends of which are arranged to alternately and successively register with the ports 13 and 14. As the Orts 13 and 14 serve both as inlet and outlet ports i'or4 their respective cylinders, an exhaust passage 19 which leads and 14 to provide for the surface 15 on the` Patented Nov. 12,y 191.8111.

rfrom the valve chamber 12, is placed fari-iv. Aenough below the lower ends ofthe ports 131 valve which will fit the valve chamber be.`

tween the lower ends of the ports 13 and y14 and the upper end of the passage 19. The

upper end of valve 18 is hollow, or tubu- L with diametrically opposed ports 22, p 22 which also alternately and sliccessivelyregfv ister with the ports 13 and 14.

lar, as shown in Fig. 3, s0 as to provide i fuel inlet chamber 21 which is provided It is desirable that the several passages bei. Y

made as large and as unobstructed as possi-V ble Vand that the various Walls or portions of the valve which deiine the several passages shall be of as nearly uniform thick'- nessl as possible and that those walls be as thin as is consistent withproper strength and an accurateY machining of the same.

For these reasons, and in view of the fact that the exhaust passage 19 is out of alinement with the ports 13 and 14,1 have found it expedient to define the exhaust assage 18 by means of a hollow partition 2g substantlally V-shaped in longitudinal section, as clearly indicated `in Fig. 1, thus permitting the inlet chamber or passage 1 n the upper end of the valve to be of considerable volume, the said chamber extending down alongside of the exhaust passage, as clearly indicated at 23 in Fig. 3 and also indicated by the dotted line 24 in Fig. 1,- and thus making possible elongated inlet ports of maximum capac ty and quick cut-off. By this arrangement I form very thin valve walls 25 of considerable vertical extent and, in order to hold these walls against distortion, I provide a cross bar 26 which is cast formed thereby, thus permitting the cross 109 bar to serve as adistributer of some of the heat from the exhaust passage'wall.A By the above construction I have been ablev to produce a short rotary valve having unusually large exhaust andinlet passages (as '101i compared with the size of the valve) while at the same time maintaininga gas-tight fitting of the valve in its casing. This ar', rangement of gas inlet chamber also-sur.-`

rounds much of the wall of the exhau'tf'pis.;

sage with fresh gases which Vwil1`fo'f course,

f an adjacent valve absorb heat fronrthe exhaust passage Wall and thus assist in 'keeping theI valve cool and in preventing warping. l

The upper end of the valve chamber 12 is capped by a cover 31 into Which afuel supply p1pe delivers. Of'course inlet and exhaust functions `of the valve passages 'and cop'- erating parts mightl be reversed without departing from -my'inventi )n',l but I believe the arrangement desori-bedsto be the better.

I claim as my invention:

In an internal j combustion engine, the

Combination with a pair'. of cylinders and chamber with two passages each forming a vcomnn'm ication bea rotary valve mounted 4Within l chamber andjcoactlng with the .Valve-chamber ends of the aforesaid passa es; said valve 20 having an.; pen ended cham r provided with twofifopposite1yarranged ports arranged forf'success'ive,registration withthe `versely through l side' of the valve chamber, a

also having a the valve and defined by a hollow partition V-shaped in longitudinal section and fianked by the chamber of the Iopen end of the va1ve,`sad gas passa e belng arranged for successive reglstration at its ends wlth the aforesaid c linder passages and with a conduit communicating With one brace` bar connect-in the outer Walls ofthe open end of the va ve, and the valve chamber and the open end of the valve. v f

In witnesswhereo I have hereunto set my hand and'seal at Indianapolis, Indiana, .this twenty-second dayof thousand nine hundred and April, A. twelve. EDWIN L. RUSSELL.- [1.. s.]` v Witnesses:

ARTHUR M.v Hoon, FRANK A. FAHLE.

D. one

.aforesaid 'cylinder passages, rand said va1ve v gas passage leading transa conduit oomfnunicatingwith 

